In the unlikely event of a hole, the absorbent sheet catches and absorbs the leaking water, swelling to seal the hole for peace of mind. It plays a significant role as the absorbent layer of a self-repairing waterproof sheet!
The self-repairing waterproof sheet for leak prevention can be utilized as the absorption layer of a self-repairing waterproof sheet. If only the waterproof layer is used, any damage that causes a hole can lead to leakage. However, the high water-absorbent resin (fiber) blended into the sheet absorbs water and swells to seal the hole, preventing leakage. It can be used in waterproof civil engineering works such as final disposal sites, agricultural reservoirs, river embankments, and retention basins. As an absorption layer for the self-repairing waterproof sheet, it is common to have a bentonite layer sandwiched between the non-woven fabric of the surface material and the backing material. The disadvantage is that the sheet is very heavy, requiring large machinery for installation. Comparison with bentonite-based sheets: ◆ Work is made easier! A significant weight reduction of 25% improves workability! Large machinery is unnecessary, and the lightweight nature makes handling easier. ◆ Work efficiency is improved! The roll length is up to about five times longer, enhancing workability! The sheet is flexible and easy to handle, and the significantly increased roll length improves work efficiency. Features of the self-repairing waterproof sheet for leak prevention: - It has excellent waterproofing properties. - Even if sharp objects penetrate the sheet, it self-repairs and is less likely to leak. - It is lightweight and has excellent workability.
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basic information
The leak prevention self-repairing sheet can be utilized as an absorption layer for self-repairing waterproof sheets. If there is only a waterproof layer, any damage that causes a hole can lead to leakage. However, the leak prevention self-repairing sheet contains high water-absorbent resin (fiber) that absorbs water and swells to seal the hole, preventing leakage. It is a self-repairing type of waterproof sheet. 【Product Specifications】 Surface Layer: Polyester non-woven fabric Intermediate Layer: High water-absorbent resin or high water-absorbent fiber, polyolefin fiber Bottom Layer: Polyester non-woven fabric Back Layer: Waterproof film Thickness: 4.4 mm (For other thicknesses, please consult us) Shape: Roll, Width 1200 mm × Length up to 100 m Width 2400 mm × Length up to 100 m (For roll lengths, we can accommodate from 20 m, so please consult us) We have a catalog available. Please feel free to contact us.
Price information
5,000 square meters or more per lot
Delivery Time
※Typically 2.5 months
Applications/Examples of results
The leak prevention self-repair sheet can be used as an absorption layer for self-repairing waterproof sheets. 1. Self-repairing waterproof material for landfill waterproofing work 2. Self-repairing waterproof material for agricultural reservoirs 3. Self-repairing waterproof material for river levees and retention basins 4. Self-repairing waterproof material for biotopes and similar applications It can also be utilized as an absorption layer for waterproof sheets in other civil engineering projects where leak prevention is necessary. For more details, please contact us.
Detailed information
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Excellent self-healing properties. Even if sharp objects penetrate the sheet, it self-repairs!
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Features of Self-Healing Waterproofing Sheet - It has excellent water resistance. - Even if sharp objects penetrate the sheet, it self-repairs and is less likely to leak. - It is lightweight and has excellent workability.
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1. Self-repairing function that seals wounds and holes It demonstrates high absorption performance with a blend of water-absorbent resin or high-water-absorbent fibers. Upon contact with water, it exhibits an absorption capacity of about 400 times its own weight. Even if a sharp object penetrates the sheet, the swollen sheet seals the leak hole and prevents leakage. With an absorption layer placed across the entire surface, it has been designed to minimize the spread of leakage even under impacts such as earthquakes.
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2. Excellent waterproofing properties Under conditions where pressure is applied, such as with covering soil, a mechanism works to maintain balanced pressure, filling and repairing small holes and scratches in the sheet. This self-repairing absorbent layer is placed across the entire surface of the sheet, demonstrating excellent waterproofing properties.
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3. Lightweight and excellent workability Self-repairing waterproof sheet Compared to bentonite-based sheets, it is significantly lighter by about 75% in weight ratio. Additionally, with a maximum increase of about 5 times in roll length ratio, it enhances workability due to its larger diameter. Before use, it is a dry sheet, making it lightweight and convenient for transportation.
Line up（2）
| Model number | overview |
|---|---|
| Self-repairing waterproof sheet - High water-absorbent resin (SAP) type | This is a sheet blended with high water-absorbent resin in the absorption layer to provide a self-repairing function that prevents water leakage. High water-absorbent resin is a highly absorbent powder used in products like diapers. It absorbs water and swells to seal holes and prevent leakage. |
| Self-repairing waterproof sheet - High water-absorbent fiber (SAF) type | This is a sheet blended with high water-absorbent fiber in the absorption layer to provide a self-repairing function that prevents water leakage. High water-absorbent fiber is made from high water-absorbent resin that has been processed into fibers, resulting in a highly absorbent material. It absorbs water and swells to seal holes and prevent leakage. |
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Company information
The Functional Materials Company will form a development-oriented business as a pillar of the business structure transformation within the Oji Group, advancing the development of new products and technologies closely aligned with our customers, as well as the exploration of new businesses utilizing core technologies. <Companies belonging to the Company> ■ Oji Fitec Co., Ltd. ■ Oji Imaging Media Co., Ltd. ■ Oji Tack Co., Ltd. ■ Shintack Chemical Co., Ltd. ■ Oji Kinocross Co., Ltd. ■ Oji Measuring Instruments Co., Ltd. ■ Oji Timely Co., Ltd. Others * Oji Functional Materials Company Portal Site https://www.oji-fmc.com/